Keira Knightley has revealed her racy side by recreating a famous scene from When Harry Met Sally.

The Imitation Game star is one of a string of British actors who ditched their stiff upper lips to send up some of Hollywood's most memorable screen moments in a short film titled The British Are Coming, for the awards season special of Vanity Fair magazine.

Keira was joined by Dame Judi Dench in recreating the scene from hit rom com When Harry Met Sally when Meg Ryan fakes an orgasm in the middle of a crowded diner, and the elderly lady on the neighbouring table tells the waitress: "I'll have what she's having."

Other stars taking part in the clip include Oscar nominees Benedict Cumberbatch and Felicity Jones, Jamie Dornan, Ruth Wilson, Matthew Goode, Game Of Thrones star Sophie Turner and The Hunger Games' Sam Claflin.

Felicity appears with Tom Hiddleston as Bonnie and Clyde, while Downton Abbey's Michelle Dockery and Homeland star Damian Lewis take on Lauren Bacall and Humphrey Bogart's legendary whistle line from To Have And Have Not.

Comedian James Corden - soon to take over as host of The Late Late Show - does the voiceover for the film, and at the end is seen joking: "Can you get my agent on the phone, because I'm a bit p***ed off with this. I only came to America so I didn't have to play these British parts."

The cover for Vanity Fair's annual Hollywood Issue is also packed with British talent, with Benedict, Felicity, Eddie Redmayne, David Oyelowo and Sienna Miller all on the cover.

They join Channing Tatum, who has Amy Adams slung over his shoulders, Reese Witherspoon, Oscar Isaac and Miles Teller.